Structure of the Ridgeback Military

 Squad (5) 

Squads consist of 5 troops. They will stay with their squad for the majority of their career, this forms great teamwork.

 Cohort (20) 

A Cohort consists of 4 Squads. It is lead by a Optio.

 Century (201) 

A Century Consists of 10 Cohorts. It is lead by a Centurion.

 Legions (1,006) 

An Army consists of 5 Centuries. It is lead by a Legatus.

 Corps (Any Number) 

Corps are the major groups of the Ridgeback union and it's allies. The Union itself only has 4 Corps with two of them being undermanned and undersupplied. It is run by the same General as in the Division.